JPH10273642A - Silicone impregnated porous sound absorbing material - Google Patents
Silicone impregnated porous sound absorbing materialInfo
- Publication number
- JPH10273642A JPH10273642A JP9251300A JP25130097A JPH10273642A JP H10273642 A JPH10273642 A JP H10273642A JP 9251300 A JP9251300 A JP 9251300A JP 25130097 A JP25130097 A JP 25130097A JP H10273642 A JPH10273642 A JP H10273642A
- Authority
- JP
- Japan
- Prior art keywords
- absorbing material
- porous sound
- silicone oil
- concrete
- sound absorbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
- C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、軽量気泡コンクリート
よりなるコンクリート系多孔質吸音材にメチルハイドロ
ジェンシリコーンオイルを含浸して得られる、吸音性能
の低下がなく、圧縮強度、曲げ強度及び表面硬度の改善
されたシリコーン含浸多孔質吸音材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete porous sound absorbing material made of lightweight cellular concrete, which is obtained by impregnating methyl hydrogen silicone oil with no decrease in sound absorbing performance, compressive strength, bending strength and surface hardness. And an improved silicone-impregnated porous sound absorbing material.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】吸音や
断熱の用に供するコンクリート系の製品では、その性能
を良くするために多量の気泡を混入（５０〜９０ｖｏｌ
％）することが行われている。しかしながら、吸音性能
等を高めるために気泡量を増大すれば、それに連れて強
度が低下し、取扱い中、施工中及び施工後にひび割れ等
が発生し破損しやすくなる。これを改善するため、常圧
蒸気養生後に高温高圧蒸気養生（オートクレーブ養生）
により改質を加える等の手段を施している。しかしなが
ら、このような改質によっても増大される強度等は期待
できるほどではない。2. Description of the Related Art In concrete products used for sound absorption and heat insulation, a large amount of air bubbles are mixed (50 to 90 vol.) In order to improve the performance.
%) To be done. However, if the amount of air bubbles is increased in order to enhance the sound absorption performance, the strength is reduced accordingly, and cracks and the like are generated during handling, during and after the work, and are likely to be damaged. In order to improve this, high-temperature and high-pressure steam curing (autoclave curing) after normal-pressure steam curing
Means such as adding reforming by means of However, the strength and the like increased by such a modification are not as high as expected.
【０００３】また、多孔質のセラミック製吸音材にシリ
コーン材料やフッ素化合物などの撥水剤を担持させ、暴
露状態等で使用した場合の吸音性能の低下を防止する技
術が知られている（特開平６―４２０７１号公報参照）
が、多孔質吸音材の強度を改善する技術は示されていな
い。Further, a technique is known in which a porous ceramic sound-absorbing material carries a water-repellent such as a silicone material or a fluorine compound to prevent a decrease in sound-absorbing performance when used in an exposed state or the like. (See Kaihei 6-42071)
However, no technique for improving the strength of the porous sound absorbing material has been disclosed.
【０００４】本発明は、上記の問題を解決するためにな
されたもので、製造が簡単で安価にできるとともに、強
度や表面硬度が高くひび割れや破損が少なく、取扱いや
施工性のよい多孔質吸音材を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is simple and inexpensive to manufacture, has high strength and surface hardness, has few cracks and breaks, and has good handling and workability. The purpose is to provide materials.
【０００５】[0005]
【問題を解決するための手段】本発明者らは、上記の目
的を達成すべく研究を重ねた結果、メチルハイドロジェ
ンシリコ−ンオイルがアルカリ存在下で水と容易に反応
して水素を発生させるなど反応性に富んでおり、コンク
リート中のセメント水和物と反応するため、このシリコ
ーンオイルを含侵させて得られるコンクリート系多孔質
吸音材の特性が安定で長期劣化のないものとなり、多孔
質吸音材の特徴である吸音性能等を低減させるおそれが
少なく、さらに高強度なコンクリート系多孔質吸音材を
得ることができることを見出し、本発明を完成するに至
った。Means for Solving the Problems The present inventors have conducted various studies to achieve the above object, and as a result, methyl hydrogen silicone oil easily reacts with water in the presence of an alkali to generate hydrogen. The concrete-based porous sound-absorbing material obtained by impregnating this silicone oil is stable and does not deteriorate over a long period of time because it reacts with cement hydrate in concrete. The present inventors have found that it is possible to obtain a concrete-based porous sound-absorbing material that is less likely to reduce the sound-absorbing performance and the like, which is a feature of the sound-absorbing material, and has completed the present invention.
【０００６】すなわち、本発明のシリコーン含浸多孔質
吸音材は、コンクリート系多孔質吸音材に、２５℃での
粘度が１〜１００ｃＳｔで、一般式 （ここで、Ｒはメチル基、水酸基、アルコキシ基または
水素原子を示し、ａ，ｂは０≦ａ≦１００、１≦ｂ≦１
００を満たす整数を示す）で示されるメチルハイドロジ
ェンシリコーンオイル、またはこのシリコーンオイル
と、一般式 （ここでｎは３〜８の整数）で示される環状シリコーン
オイルの混合物を含浸させたことを特徴とするものであ
る。That is, the silicone-impregnated porous sound-absorbing material of the present invention has a viscosity of 1 to 100 cSt at 25 ° C. (Where R represents a methyl group, a hydroxyl group, an alkoxy group or a hydrogen atom, and a and b are 0 ≦ a ≦ 100, 1 ≦ b ≦ 1
A methyl hydrogen silicone oil represented by the following general formula: (Where n is an integer of 3 to 8) is characterized by being impregnated with a mixture of cyclic silicone oils represented by the following formula:
【０００７】[0007]
【発明の実施の形態】本発明において使用されるコンク
リート系多孔質吸音材は、かさ比重が０．２〜０．６の
軽量多孔質コンクリートにより形成され、直径０．１〜
１．０mm程度の小さな気泡が相互に連通しており、吸音
性のほか遮音性、断熱性を有するものが好適である。軽
量多孔質コンクリートとしては具体的には大同コンクリ
ート工業（株）製剛体多孔質吸音材( 商品名：ポアセ
ル) が例示され、このような多孔質吸音材は例えば、特
開昭５７―３４０６０号公報に示されるような製造方法
により得ることができる。また形状としては良好な特性
が示されることから、厚さが５０〜１００mmのものが好
ましく使用される。BEST MODE FOR CARRYING OUT THE INVENTION The concrete porous sound absorbing material used in the present invention is formed of lightweight porous concrete having a bulk specific gravity of 0.2 to 0.6 and a diameter of 0.1 to 0.1.
It is preferable that bubbles having a small diameter of about 1.0 mm communicate with each other and have a sound absorbing property, a sound insulating property and a heat insulating property. Specific examples of the lightweight porous concrete include a rigid porous sound-absorbing material (trade name: Porecell) manufactured by Daido Concrete Co., Ltd. Such a porous sound-absorbing material is described in, for example, Japanese Patent Application Laid-Open No. 57-34060. Can be obtained by the production method as shown in (1). In addition, a shape having a thickness of 50 to 100 mm is preferably used because good characteristics are exhibited.
【０００８】本発明において使用されるメチルハイドロ
ジェンシリコーンオイルは、前記した一般式（１）で示
されるもので、コンクリート系多孔質吸音材に、その吸
音性能を損なうことなく、優れた強度・表面硬度および
耐久性を付与し、さらには良好な撥水性をも付与するも
のである。一般式（１）において、置換基のＲはメチル
基、水酸基、アルコキシ基または水素原子を示し、特に
優れた撥水性などの特性を付与できることからメチル基
が好ましい。アルコキシ基としては、メトキシ基、エト
キシ基、イソプロポキシ基、ｎ- ブトキシ基などが例示
される。またａ，ｂは０≦ａ≦１００、１≦ｂ≦１００
を満たす整数を示し、強度・耐久性等に優れることか
ら、０≦ａ≦５０、２０≦ｂ≦１００を満たす整数であ
ることが好ましく、特に０≦ａ≦２０、３０≦ｂ≦１０
０を満たす整数であることが好ましい。また粘度は１〜
１００ｃＳｔであり、多孔質吸音材への含浸が良好に行
え、含浸層の厚さ、含浸量などが適度なものとし易いこ
とから、５〜８０ｃＳｔ、特に１０〜５０ｃＳｔのもの
が好ましく使用される。The methyl hydrogen silicone oil used in the present invention is represented by the above-mentioned general formula (1). The concrete-based porous sound absorbing material has excellent strength and surface without impairing its sound absorbing performance. It imparts hardness and durability, and also imparts good water repellency. In the general formula (1), R of the substituent represents a methyl group, a hydroxyl group, an alkoxy group, or a hydrogen atom, and is preferably a methyl group because particularly excellent properties such as water repellency can be imparted. Examples of the alkoxy group include a methoxy group, an ethoxy group, an isopropoxy group, and an n-butoxy group. A and b are 0 ≦ a ≦ 100, 1 ≦ b ≦ 100
It is preferably an integer satisfying 0 ≦ a ≦ 50, 20 ≦ b ≦ 100, particularly from 0 ≦ a ≦ 20, 30 ≦ b ≦ 10, because of excellent strength and durability.
It is preferably an integer satisfying 0. The viscosity is 1 to
Since it is 100 cSt, the impregnation into the porous sound-absorbing material can be performed well, and the thickness of the impregnated layer and the amount of impregnation are easily made to be appropriate, 5-80 cSt, particularly 10 to 50 cSt, is preferably used.
【０００９】また、本発明の他の態様としては、前記の
一般式（１）で示されるメチルハイドロジェンシリコー
ンオイルに、さらに前記した一般式（２）で示される環
状シリコーンオイルを併用し、これらの混合物からなる
シリコーンオイルを使用する。かくすれば、メチルハイ
ドロジェンシリコーンオイルのみの使用と比べて、多孔
質吸音材への含浸性と吸音性能がさらに向上する。環状
シリコーンオイルを示す一般式（２）において、ｎは３
〜８の整数であり、良好な効果が得られることから、ｎ
は４〜８のものが好ましい。環状シリコーンオイルを併
用する場合、両者の混合割合はメチルハイドロジェンシ
リコーンオイル／環状シリコーンオイル＝１０／９０〜
９５／５（重量比）とすることが好ましく、特に７０／
３０〜４０／６０とすることが好ましい。このような混
合割合となるように環状シリコーンオイルを併用するこ
とにより、多孔質吸音材への含浸性が向上し、さらにメ
チルハイドロジェンシリコーンオイルの量を少なくして
も、良好な吸音性能が得られるという特徴がある。In another aspect of the present invention, a cyclic silicone oil represented by the general formula (2) is used in combination with the methyl hydrogen silicone oil represented by the general formula (1). Use a silicone oil consisting of a mixture of In this way, the impregnation into the porous sound absorbing material and the sound absorbing performance are further improved as compared with the case of using only methyl hydrogen silicone oil. In the general formula (2) representing a cyclic silicone oil, n is 3
Is an integer of from 8 to 8, and a good effect is obtained.
Is preferably 4 to 8. When a cyclic silicone oil is used in combination, the mixing ratio of both is methyl hydrogen silicone oil / cyclic silicone oil = 10 / 90-
95/5 (weight ratio) is preferable, and especially 70 /
It is preferably 30 to 40/60. By using a cyclic silicone oil together to achieve such a mixing ratio, the impregnation property of the porous sound absorbing material is improved, and even if the amount of methyl hydrogen silicone oil is reduced, good sound absorbing performance is obtained. There is a feature that is.
【００１０】本発明のシリコーン含浸多孔質吸音材は、
コンクリート系多孔質吸音材にメチルハイドロジェンシ
リコーンオイルを、浸漬塗り、スプレー塗り、刷毛塗
り、ローラー塗りなど各種の方法で塗布し、含浸させる
ことにより得られる。含浸量は多孔質吸音材の表面に、
好ましくは０．５〜２．０kg／ｍ2 の量、特に好ましく
は０．７５〜１．５kg／ｍ2 の量を塗布し、形成される
含浸層が好ましくは８〜２５mm、特に好ましくは１０〜
２０ｍｍの厚さとなるように行うことが好ましい。なお
多孔質吸音材にシリコーンオイルを含浸させたのちに室
温で１時間〜１日風乾させることにより、良好な特性が
得られるようになるが、必要により加熱をすることは構
わない。[0010] The silicone-impregnated porous sound-absorbing material of the present invention comprises:
It can be obtained by applying and impregnating a concrete porous sound absorbing material with methyl hydrogen silicone oil by various methods such as dip coating, spray coating, brush coating, and roller coating. The impregnation amount is on the surface of the porous sound absorbing material,
Preferably the amount of 0.5~2.0kg / m 2, particularly preferably by applying a quantity of 0.75~1.5kg / m 2, the impregnation layer is preferably 8~25mm formed, particularly preferably 10 ~
It is preferable to perform the process so as to have a thickness of 20 mm. In addition, after the porous sound absorbing material is impregnated with silicone oil and air-dried at room temperature for 1 hour to 1 day, good characteristics can be obtained. However, heating may be performed if necessary.
【００１１】また、多孔質吸音材にシリコーンオイルを
含浸させる場合に、塗布が良好に行えるようにするため
に、また含浸量が調整し易くなることから、シリコーン
オイルを有機溶剤と混合して使用してもよく、有機溶剤
としてはメタノール、エタノール、イソプロパノールな
どのアルコール類、エチレングリコールモノメチルエー
テル、エチレングリコールモノエチルエーテル、テトラ
ヒドロフラン、ジオキサンなどのエーテルアルコールお
よびエーテル類、アセトン、メチルエチルケトン、ジエ
チルケトンなどのケトン類、酢酸メチル、酢酸エチル、
酢酸ｎ―ブチルなどのエステル類、ｎ−ヘキサン、ガソ
リン、ゴム揮発油、ミネラルスピリット、灯油、イソパ
ラフィンなどの脂肪族炭化水素、ベンゼン、トルエン、
キシレンなどの芳香族炭化水素などが例示される。ま
た、場合により前述の環状シリコーンオイル以外の、低
粘度の好ましくは揮発性の低分子量ジメチルシリコーン
オイルを使用してもよい。When the porous sound-absorbing material is impregnated with silicone oil, the silicone oil is mixed with an organic solvent in order to facilitate the application and to easily adjust the impregnation amount. Examples of the organic solvent include alcohols such as methanol, ethanol, and isopropanol; ether alcohols and ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, tetrahydrofuran, and dioxane; and ketones such as acetone, methyl ethyl ketone, and diethyl ketone. , Methyl acetate, ethyl acetate,
Esters such as n-butyl acetate, n-hexane, gasoline, rubber volatile oil, mineral spirit, kerosene, aliphatic hydrocarbons such as isoparaffin, benzene, toluene,
Examples thereof include aromatic hydrocarbons such as xylene. In addition, a low-viscosity, preferably volatile, low-molecular-weight dimethyl silicone oil other than the aforementioned cyclic silicone oil may be optionally used.
【００１２】[0012]
【実施例】次に、実施例によって本発明をさらに具体的
に説明する。なお、実施例中において粘度は２５℃の値
を示す。Next, the present invention will be described more specifically with reference to examples. In addition, the viscosity shows the value of 25 degreeC in an Example.
【００１３】[0013]
【実施例１】所定寸法（５０×５００×５００mm）に形
成したかさ比重０．３の多孔質吸音材（大同コンクリー
ト工業（株）製、商品名：ポアセル）の表面に、刷毛に
て粘度２０ｃＳｔのメチルハイドロジェンシリコーンオ
イル（式（１）でａ＝０，Ｒ＝メチル基）を、それぞれ
０．５，１．０，１．５kg／ｍ2 の量となるように塗布
含浸させ、室温で７２時間静置して乾燥後、所定寸法に
切断し試験体を得た。Example 1 A surface of a porous sound-absorbing material (Porecell, manufactured by Daido Concrete Co., Ltd., having a bulk specific gravity of 0.3) formed in a predetermined size (50 × 500 × 500 mm) was coated with a brush with a viscosity of 20 cSt. Of methyl hydrogen silicone oil (a = 0, R = methyl group in the formula (1)) in an amount of 0.5, 1.0, 1.5 kg / m 2 , respectively. After leaving it to stand for 72 hours and drying, it was cut into predetermined dimensions to obtain test specimens.
【００１４】上記含浸後の試験体について、吸音率、強
度、表面硬度、含浸深さ及び耐久性について評価を行っ
た。評価は以下のような条件で行い、結果を表１−１に
示す。 垂直入射吸音率 ：500 〜2000Ｈｚの平均吸音率、 θ91.6mm×50mm試験体 圧縮強度 ：50×50×50mm 曲げ強度 ：50×70×300mm （スパン200mm ） 表面硬度 ：鉛筆硬さ 耐久性 ：サンシャインウエザーメーター試験（２０００時間）及 び凍結融解試験 含浸深さ ：含水によるThe impregnated test specimens were evaluated for sound absorption, strength, surface hardness, impregnation depth and durability. The evaluation was performed under the following conditions, and the results are shown in Table 1-1. Normal incidence sound absorption coefficient: Average sound absorption coefficient of 500 to 2000 Hz, θ91.6 mm x 50 mm Test piece Compressive strength: 50 x 50 x 50 mm Bending strength: 50 x 70 x 300 mm (span 200 mm) Surface hardness: pencil hardness Durability: sunshine Weather meter test (2000 hours) and freeze-thaw test Impregnation depth: Depends on water content
【００１５】[0015]
【表１−１】 [Table 1-1]
【００１６】[0016]
【実施例２】メチルハイドロジェンシリコーンオイルと
して粘度６０ｃＳｔのもの（式（１）でａ＝ｂ、Ｒ＝メ
チル基）を使用した他は、実施例１と同様に多孔質吸音
材の含浸を行い、試験体を得て、評価を行った。結果を
表１−１に示す。Example 2 A porous sound absorbing material was impregnated in the same manner as in Example 1 except that a methyl hydrogen silicone oil having a viscosity of 60 cSt (a = b, R = methyl group in the formula (1)) was used. , A test body was obtained and evaluated. The results are shown in Table 1-1.
【００１７】[0017]
【実施例３】実施例１で使用したメチルハイドロジェン
シリコーンオイルと環状シリコーンオイル（式（２）で
ｎ＝４）を５０：５０の重量比で混合したものを使用し
た他は、実施例１と同様に多孔質吸音材の含浸を行い、
試験体を得て、評価を行った。結果を表１−１に示す。Example 3 Example 1 was repeated except that a mixture of the methyl hydrogen silicone oil used in Example 1 and the cyclic silicone oil (n = 4 in the formula (2)) in a weight ratio of 50:50 was used. Impregnation of the porous sound absorbing material in the same way as
A test body was obtained and evaluated. The results are shown in Table 1-1.
【００１８】[0018]
【比較例１】メチルハイドロジェンシリコーンオイルの
代わりに、粘度２０ｃＳｔのジメチルシリコーンオイル
を使用した他は、実施例1 と同様に多孔質吸音材の含浸
を行い、試験体を得て、評価を行った。結果を表１−１
に示す。Comparative Example 1 A porous sound absorbing material was impregnated in the same manner as in Example 1 except that dimethyl silicone oil having a viscosity of 20 cSt was used in place of methyl hydrogen silicone oil, and a test piece was obtained and evaluated. Was. Table 1-1 shows the results.
Shown in
【００１９】[0019]
【比較例２】メチルハイドロジェンシリコーンオイルの
代わりに、粘度10万ｃＳｔのジメチルシリコーンオイル
をエマルジョン化したもの（東芝シリコーン（株）製、
商品名：ＹＭＲ７２１２）を使用した他は、実施例１と
同様に多孔質吸音材の含浸を行い、試験体を得て、評価
を行った。結果を表１−２に示す。Comparative Example 2 Instead of methyl hydrogen silicone oil, emulsified dimethyl silicone oil having a viscosity of 100,000 cSt (manufactured by Toshiba Silicone Co., Ltd.)
Except for using trade name: YMR7212), a porous sound absorbing material was impregnated in the same manner as in Example 1 to obtain a test body, which was evaluated. The results are shown in Table 1-2.
【００２０】[0020]
【比較例３】メチルハイドロジェンシリコーンオイルの
代わりに、アルキル変性シリコーンオイル( 東芝シリコ
ーン( 株) 製、商品名：ＴＳＦ４４２１) を使用した他
は、実施例１と同様に多孔質吸音材の含浸を行い、試験
体を得て、評価を行った。結果を表1 −２に示す。Comparative Example 3 A porous sound absorbing material was impregnated in the same manner as in Example 1 except that an alkyl-modified silicone oil (trade name: TSF4421 manufactured by Toshiba Silicone Co., Ltd.) was used instead of the methyl hydrogen silicone oil. Then, a test body was obtained and evaluated. The results are shown in Table 1-2.
【００２１】[0021]
【表１−２】 [Table 1-2]
【００２２】[0022]
【比較例４】メチルハイドロジェンシリコーンオイルと
して、粘度２００ｃＳｔのもの( 式（１）でａ／ｂ＝
９、Ｒ＝メチル基) を使用した他は、実施例１と同様に
多孔質吸音材の含浸を行い、試験体を得て、評価を行っ
た。結果を表1 −２に示す。Comparative Example 4 A methyl hydrogen silicone oil having a viscosity of 200 cSt (a / b =
9, R = methyl group), except that a porous sound absorbing material was impregnated in the same manner as in Example 1 to obtain a test body, which was evaluated. The results are shown in Table 1-2.
【００２３】上記の試験結果より明らかなように、特定
のシリコーンオイルを含浸させた本発明の多孔質吸音材
は、従来の多孔質吸音材に比べて、吸音性能をほとんど
低下させることなく強度等を向上できることがわかっ
た。As apparent from the above test results, the porous sound-absorbing material of the present invention impregnated with a specific silicone oil has a strength and the like with almost no decrease in sound-absorbing performance as compared with the conventional porous sound-absorbing material. Was found to be able to improve.
【００２４】[0024]
【発明の効果】以上説明したように、本発明によれば、
軽量コンクリート系多孔質吸音材に特定のシリコーンオ
イルを塗布含浸させることで、従来の剛体多孔質吸音材
に比べて吸音性能を低下させることなく、強度等の性能
を向上させることができる。そして、製造は簡単で安価
にでき、強度・表面硬度が高くてひび割れや破損が少な
く、取扱いが容易で施工性の良い製品が得られる。As described above, according to the present invention,
By applying and impregnating a specific silicone oil to a lightweight concrete porous sound absorbing material, performance such as strength can be improved without lowering sound absorbing performance as compared with a conventional rigid porous sound absorbing material. And the product can be manufactured easily and inexpensively, and a product having high strength and surface hardness, few cracks and breakage, easy handling and good workability can be obtained.
【００２５】本発明の多孔質吸音材では、コンクリート
系の多孔質吸音材が優れた吸音性を発揮する。そして、
この多孔質吸音材は、塗布含浸させたシリコーンオイル
と反応して強度および耐久性が向上されることになる。
しかも、特定のシリコーンオイルを選定して使用するこ
とにより、吸音性能の低下がないという特徴がある。In the porous sound absorbing material of the present invention, a concrete porous sound absorbing material exhibits excellent sound absorbing properties. And
This porous sound-absorbing material reacts with the silicone oil impregnated and impregnated to improve strength and durability.
In addition, by selecting and using a specific silicone oil, there is a characteristic that the sound absorbing performance is not reduced.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 栗田 明嗣 東京都港区六本木六丁目２番31号 東芝シ リコ−ン株式会社内 (72)発明者 佐藤 吉幸 東京都港区六本木六丁目２番31号 東芝シ リコ−ン株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Meiji Kurita 6-2-31 Roppongi, Minato-ku, Tokyo Inside Toshiba Silicon Corporation (72) Inventor Yoshiyuki Sato 2-2-1 Roppongi, Minato-ku, Tokyo No. Toshiba Silicon Corporation
Claims (3)
での粘度が１〜１００ｃＳｔで、一般式 （ここで、Ｒはメチル基、水酸基、アルコキシ基または
水素原子を示し、ａ，ｂは０≦ａ≦１００、１≦ｂ≦１
００を満たす整数を示す）で示されるメチルハイドロジ
ェンシリコーンオイルを含浸させたことを特徴とするシ
リコーン含浸多孔質吸音材。1. A concrete-type porous sound-absorbing material is used at 25 ° C.
With a viscosity of 1 to 100 cSt in general formula (Where R represents a methyl group, a hydroxyl group, an alkoxy group or a hydrogen atom, and a and b are 0 ≦ a ≦ 100, 1 ≦ b ≦ 1
A silicone hydrogen-impregnated porous sound absorbing material impregnated with a methyl hydrogen silicone oil represented by the following formula:
をコンクリート系多孔質吸音材の表面に０. ５〜２．０
ｋｇ／ｍ2 の量を塗布し、形成される含浸層の厚さが８
〜２５ｍｍであることを特徴とする請求項１記載のシリ
コーン含浸多孔質吸音材。2. A method in which methyl hydrogen silicone oil is applied to the surface of the concrete porous sound absorbing material in an amount of 0.5 to 2.0.
kg / m 2 and the thickness of the impregnated layer formed is 8
The silicone-impregnated porous sound-absorbing material according to claim 1, wherein the thickness is from 25 mm to 25 mm.
ーンオイルと、一般式 （ここでｎは３〜８の整数）で示される環状シリコーン
とを混合して、コンクリート系多孔質吸音材の表面に
０．５〜２．０ｋｇ／ｍ2 の量を塗布し、形成される含
浸層の厚さが８〜２５ｍｍであることを特徴とするシリ
コーン含浸多孔質吸音材。3. The methyl hydrogen silicone oil of claim 1 and a compound of the general formula (Where n is an integer of 3 to 8) is mixed with a cyclic silicone and applied to the surface of the concrete-type porous sound-absorbing material in an amount of 0.5 to 2.0 kg / m 2 to be formed. A silicone-impregnated porous sound absorbing material, wherein the thickness of the impregnated layer is 8 to 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25130097A JP3917726B2 (en) | 1997-01-30 | 1997-09-01 | Silicon impregnated porous sound absorbing material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9-31177 | 1997-01-30 | ||
| JP3117797 | 1997-01-30 | ||
| JP25130097A JP3917726B2 (en) | 1997-01-30 | 1997-09-01 | Silicon impregnated porous sound absorbing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10273642A true JPH10273642A (en) | 1998-10-13 |
| JP3917726B2 JP3917726B2 (en) | 2007-05-23 |
Family
ID=26369627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25130097A Expired - Fee Related JP3917726B2 (en) | 1997-01-30 | 1997-09-01 | Silicon impregnated porous sound absorbing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3917726B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002287769A (en) * | 2001-03-28 | 2002-10-04 | Inoac Corp | Melamine acoustic material and method of manufacturing the same |
| JP2002348518A (en) * | 2001-05-25 | 2002-12-04 | Mitsubishi Pencil Co Ltd | Fired colored pencil lead and method for producing the same |
| JP2003022076A (en) * | 2001-07-06 | 2003-01-24 | Inoac Corp | Flame-retardant sound-absorbing material and method for producing the same |
Citations (6)
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|---|---|---|---|---|
| JPS49119414A (en) * | 1973-03-16 | 1974-11-14 | ||
| JPS57118084A (en) * | 1981-01-07 | 1982-07-22 | Denki Kagaku Kogyo Kk | Manufacture of lightweght foamed concrete |
| JPS5849507B2 (en) * | 1980-07-14 | 1983-11-04 | 東邦化学工業株式会社 | Manufacturing method of autoclaved water-repellent lightweight cellular concrete |
| JPS63277581A (en) * | 1987-05-08 | 1988-11-15 | Onoda:Kk | Water-proofing treatment of light-weight aerated concrete |
| JPH0688260A (en) * | 1992-09-04 | 1994-03-29 | Asahi Chem Ind Co Ltd | Rust preventing method for alc reinforcing bar or the like |
| JPH0830275A (en) * | 1994-07-19 | 1996-02-02 | Bridgestone Corp | Sound absorbing material |
-
1997
- 1997-09-01 JP JP25130097A patent/JP3917726B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49119414A (en) * | 1973-03-16 | 1974-11-14 | ||
| JPS5849507B2 (en) * | 1980-07-14 | 1983-11-04 | 東邦化学工業株式会社 | Manufacturing method of autoclaved water-repellent lightweight cellular concrete |
| JPS57118084A (en) * | 1981-01-07 | 1982-07-22 | Denki Kagaku Kogyo Kk | Manufacture of lightweght foamed concrete |
| JPS63277581A (en) * | 1987-05-08 | 1988-11-15 | Onoda:Kk | Water-proofing treatment of light-weight aerated concrete |
| JPH0688260A (en) * | 1992-09-04 | 1994-03-29 | Asahi Chem Ind Co Ltd | Rust preventing method for alc reinforcing bar or the like |
| JPH0830275A (en) * | 1994-07-19 | 1996-02-02 | Bridgestone Corp | Sound absorbing material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002287769A (en) * | 2001-03-28 | 2002-10-04 | Inoac Corp | Melamine acoustic material and method of manufacturing the same |
| JP2002348518A (en) * | 2001-05-25 | 2002-12-04 | Mitsubishi Pencil Co Ltd | Fired colored pencil lead and method for producing the same |
| JP2003022076A (en) * | 2001-07-06 | 2003-01-24 | Inoac Corp | Flame-retardant sound-absorbing material and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3917726B2 (en) | 2007-05-23 |
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